James Peale, RG, LHG

James Peale is a Principal Hydrogeologist based in Portland, Oregon with more than 25 years of experience focused on legacy site management, contaminant fate and transport, and environmental forensics.

James has practical experience designing and implementing in situ remedies for chlorinated solvent DNAPL sites, investigating manufactured gas plant DNAPL sites, and providing support for legacy sediment sites. He has provided critical technical and management support for complex, multiparty investigations, with a focus on the Portland Harbor Superfund site over the last two decades. His work on environmental forensics has expanded his practice to supporting cost allocation and environmental litigation.

To advance the state of the practice, James identifies and implements developing and innovative technologies to improve the effectiveness and efficiency of soil, groundwater, and sediment remediation. He served as project director and principal hydrogeologist for the design and implementation of the largest zero-valent iron-enhanced bioremediation of TCE DNAPL in the Pacific Northwest. At that site, he also integrated a large-scale data set combining chlorinated solvent concentrations and polymerase chain reaction (PCR) data to characterize changes in subsurface microbial communities over a nine-year monitoring period. Over 4,000 unique species were suggested by the data, and dehalogenation activity by previously-unidentified bacteria was correlated with population changes. James has also evaluated data and promoted the development of enhanced broad-spectrum photo-oxidation of contaminated waters. Mr. Peale is recognized as a regional expert in chlorinated site characterization and remediation and is regularly invited to present at national and international conferences.

Contact James Peale at This email address is being protected from spambots. You need JavaScript enabled to view it. or +1-971-271-5889.

Career Summary: James Peale, RG, LHG

  • Specialties: Legacy Site Management and Support, Site Assessment and Remedial Services, MGP DNAPL Investigation, Fate and Transport, Chlorinated Solvent Characterization and Remediation, Environmental Forensics, Allocation, and Litigation Support
  • Practice Areas: Contaminated Site Assessment and Cleanup, Water and Natural Resources, Water Management
  • Disciplines: Environmental Engineering, Environmental Sciences
  • Education: M.S., Environmental Science and Engineering. Oregon Graduate Institute of Science & Technology, 1996; B.A., Geology, Vassar College, 1991
  • Registration: Oregon Registered Geologist, G1875, 1999; Washington Licensed Hydrogeologist, 1739, 2002
Geosyntec Consultants
Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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